Machine for punching staples and providing the same with wood-fiber insulation



March 27, 1928.

. G. A. PARKER MACHINE FOR PUNCHING STAPLES AND PROVIDING THE SAME WITH WOOD FIBER INSULATION Filed Aug. 8. l926 4 Sheets-Sheet 1 March 27, 1928. 1,663,812

G. A. PARKER MACHINE FOR PUNCHING STAPLES AND PROVIDING THE SAME WITH WOOD FIBER INSULATION Filed Aug. 5, 1926 4 Sheets-Sheet 2 March 27, 1928;

' G. A. PARKER MACHINE FOR PUNCHING STAPLES AND PROVIDING THE SAME WITH WOOD FIBER INSULATION Flled Aug 5. 1926 4 Sheets-5mm, '5

m 'mm bio-0%. Qm/w 6. a1.-

March 27, 1928.

Patented Mar. 27, 1928.

U Maasratas amt,

VGEORGE A. PARKER-,0]? BROGKTON,WMASSAOHUSETTS.

PMACHINE FOR PUNCHING STAPLES AND PROVIDING.THE SAME WITH: WOQD-EIBER INSULATION. V g

Application filed August 3,1926. Serial. No. 126,872.

' The invention has relation to a machine for-making staples and providing the same with an insulation of wood fiber or the like nanditconsists in the novel construction and combinations of parts as set forth in the appended claims. I v

:Anoobject of the invention is to provide a .ma'chinelfor automatically supplying staples.

withian'i insulation of wood fiber. Another object. is to automatically supply the staples "with an insulation of folded wood fiber.

l In the accompanying drawings, illustratdng theinvention, Figure l is aplan view of a the. machinefFigur-Q is a, plan view'of the jmachine with the punch and its operating osha'ft removedt andparts broken away, the parts, being-in position to feed the staple; Figurel3 is a f similar view (fragmentary) wherein the operating parts show the staple Q..as fedand as driven through the'fiberinsulaf tionstrip; Figure 4' is a similar View on a Figures' 11 and 12 are detail perspectiveandedge views of the staple; Figure 13 is a de- .tail .plan view of a single form of staple;' a a recess 18 prov1ded-w1th a" concave'bottom -wall 19, and a removable tapered insert piece liaving a flat top1oc'ated"againstthe flat top of said recess; and-a convex tapered-bob 351Figures 14: and 15 are detail perspective and I ,plan 'views of the staple with fiber strip applied: theretoeand Figure 16 is a detail pervgspectiveview of the insert piece of the fiber I iifoldingdevice. i In these drawings, the numeral 1 desig- V nates thebecl of the machine. supported upon legs 2, said bed. having standards 3 wherein .v is journaleda shaft 41:, carrying an eccentric 5; the strap-of which operates the punch 6 having a head slidable in guidesof said a a standards.

7, being of rectangularv block form wherein .is provided a groove or passage 8 for the metalstrip v8 wherefromrthe staples ware struck inrthewoperationof the punch -each sta pleas it is punched falling upon bed plate 1 Where it comes to rest'inthe pathof' movement, of a 'reciprocatory push bar 9Q-working in guides 9, 'saidpush' bar being-moved to feed .saidv staple along the top-ofthe b'ed plate to a newposition thereon in thepathof movement of a reciprocatory push bar; 10 working at right angles tothe push bar' 9. 1

"The wood fiber insulation strip" 11 is; fed to the machine in a direction opposite to that of the 'feed'movement of push barQandat' right 1 angles to' the feed ofithe metal stripfrom which the staples are punched. Said"w-ood fiber strip is at its'free end benttransversely to engage the groove 12; arcuate incross-sect-ion, of the foldingdevicelg ofarjeciproca- 'tory carriage 14 working-along 'thetop-of said bed plate 1,:said-earriage having; a spring. pressed; pawl 15 engaging one side of the folded wood'fiber stripand pressingsaid strip against one side of anupstanding lug 16 of said carriage to hold said strip 'as folded and serving in flthemovernent of" the" earone stepto provide suflicient materialtforinpressed pawl 15 gpermitting *thisreverse stated. The folding device of the carriage consists of a base block 14: having-atapered tom wall-"21 located-adjacent to andspaced from the concave bottom fall 19 of" said reeess, said insert piece beingfheldfi n raised position above the bottom wall 'of' -said' re- 'riage forwardly to-feed the f'o'ldedlfiber strip su-lating one staple. f l'nthe reverse gr'n'ove- *mentof the carriagela the folding devioe -l3 will ride alongthewoodt fiberstrip andfold the partthereof engaged thereby,thespring cess byscrewsr'22. The transversely bent.-

"free end of the-wood fiber strip is manually engaged- Within the space 12 of arcuateicross I section between the bottom of the insert I Carried by the bed of. the machine and im-- xmediately below said punch is the staple die.

piece 20' andthe bottom of said recess'and is passed forwardly through thefjfoldingldevice to gradually fold said strip longitudin'al'ly; upon itself, being finally -passed be machine may then be started in operation, the action of the folding device thereafter being automatic.

The staple being punched and fed to a new position on the bed plate opposite push bar 10 and the wood fiber strip being folded and being fed one step, also opposite to the push bar 10, these actions taking place simultaneously, a reciprocatory brace device 24 is operated to bring the spaced points 25 thereof in contact with one side wall of the folded wood fiber strip, and immediately thereafter the push bar 10 is operated to move the staple to penetrate the wood fiber strip, the main shank or prong of the staple being re ceived in the space 26 between said brace points 25 and at the end of the movement I engaging the inner lateral surfaces. of said points and the shorter shank or shanks of the staple engaging the outer lateral surfaces of said points to limit the movement. At the same time that the push bar 10 is operated to pierce the wood fiber strip with the staple, or shortly thereafter, push bar 27 is operated to cause knife 27 thereof to sever --the free end portion of the Wood fiber strip .pierced by and carrying the staple and to cause points 28 of said push bar to pierce the wood fiber strip preparatory to the piercing of said strip by the next staple in order, the middle point 28 piercing both folds of o the fiber strip and the lateral points 28 piercing only one fold. Knife 27 coacts with 'one edge of a stationary block 27 acting as a stationary knife, having a recess 28 to receive the center point 28. The object of this preparatory piercing of the wood fiber strip is to facilitate the engagement of the next staple with the wood fiber strip upon the next movement of the push bar 1-0. The operation of-the parts is repeated indefinite- I ly-to punch the staples and provide the same with the fiber insulations.

- Power being applied, the shaft 4 will retate eccentric 5, the strapof which operates punch 6, said shaft through belt 29 and pulleys 30 operating the shaft 31, being the main operating shaft of the machine. The shaft 31 carries the following: eccentric 32,

the strap 33 of which operates lever 34 having pawl and ratchet connection 35 with feed rollers 36 for the metal strip 8, the shafts of said feed rollers carrying inter-meshed gears 37'; eccentric 38, the strap of which operates lever 39 having an actuating pin and slot connection vwith brace device .24;

.cam 40 having a cam groove 41 wherein works roller 42 of an operating device 43' for carriage 14; cam 44 having a cam groove 45 wherein works roller 46 of an operating device 47 for push bar 9; eccentric 48, the strap of which has a pin and slot connection 49 with lever 50 operating the push bar 10, and eccentric 51, the strap of which has an operating connection 52 with push bar 27.

The stroke of the punch 6 may be varied by a suitable means, such, for instance, as adjustable wedge 53, engaging a groove of the punch head, the adjustment of the punch shank being fixed by a screw 54.

The staple a made by this machine forms 7 axis of the longer shanks c, 0, thereby fa cilitating the driving of the staple.

The insulation of wood fiber 11 applied to the staple is pressed upon the pointed shanks into engagement with the contracted c 0 decks e of said shanks, whereby the fiber insulation is held from escape by the shouldered portions of said shanks adjacent said necks. The fiber insulation is usually folded longitudinally as shown, with one layer it thereof engaging said contracted necks e and the other or inner layer h, lying over the pointed portions of the shorter shank or shanks a, for better cushioning efiect;

I claim:

1. In a machine for manufacturing staples with a fiber insulation, means for feeding a metal strip, means for punching staples successively therefrom, means for feeding a wood fiber strip, means for feeding the stables into alignment with successive end portions of the wood fiber strip, and means for driving the staples successively through successive end portions of the wood fiber strip and thereafter severing said end portions' 2. In a machine for manufacturing staples with a fiber insulation, means for feeding a metal strip, means for punching staples successively therefrom, means for feed ing a wood fiber strip, means for feeding the staples intoalignment with successive end portions of the wood fiber strip, and means for driving the staples successively through successive end portions of the wood fiber strip and thereafter severing said end portions, including a pronged brace device for engaging the staple between the prongs.

3. In a machine for manufacturing staples with a fiber insulation, a table, means for feeding a metal strip, means overlying said table for successively punching staples thereof the wood fiber strip and thereafter severing said end portions including a pronged brace bar overlying said table and adapted to engage the staple between the prongs.

4. In a machine of the class described, means for feeding successive staples, means for feeding a wood fiber strip and for folding the same longitudinally, and means for successively driving the staples through suc cessive end portions of the Wood fiber strip and thereafter severing said end portions.

In testimony whereof I aifix my signature.

r GEORGEA. PARKER. 

